Air filter housing 94 newmar mntair f53 460

I have the above motorhome. I want to put a new air filter. I am asking for information on how to do this from someone who knows how that filter housing comes apart. It is difficult to explain, but, someone who has this exact same setup would know what I mean. I was able to unsnap the front length of plastic pipe that runs from the housing to in front of the radiator, but, now I am stumped on how to proceed.